Marty Oehme
7a69bd509f
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51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
from pathlib import Path
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from typing import Protocol
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import papis.config
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import papis.document
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import papis.logging
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from papis.document import Document
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from papis_extract.annotation import Annotation
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from papis_extract.exceptions import ExtractionError
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logger = papis.logging.get_logger(__name__)
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class Extractor(Protocol):
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def can_process(self, filename: Path) -> bool: ...
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def run(self, filename: Path) -> list[Annotation]: ...
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def start(
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extractor: Extractor,
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document: Document,
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) -> list[Annotation] | None:
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"""Extract all annotations from passed documents.
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Returns all annotations contained in the papis
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documents passed in (empty list if no annotations).
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If there are no files that the extractor can process,
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returns None instead.
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"""
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annotations: list[Annotation] = []
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file_available: bool = False
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for file in document.get_files():
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fname = Path(file)
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if not extractor.can_process(fname):
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continue
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file_available = True
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try:
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annotations.extend(extractor.run(fname))
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except ExtractionError as e:
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logger.error(
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f"File extraction errors for {file}. File may be damaged.\n{e}"
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)
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if not file_available:
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return None
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return annotations
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